The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2018
Filed:
Jun. 01, 2015
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Sichuan, CN;
Benjiang Mao, Sichuan, CN;
Yixin Liu, Sichuan, CN;
Yang Xu, Sichuan, CN;
Meng He, Sichuan, CN;
Renhong Zhuo, Sichuan, CN;
Dezhi Wen, Sichuan, CN;
Dajie Ding, Sichuan, CN;
Jing Cheng, Sichuan, CN;
Hui Zheng, Sichuan, CN;
Abstract
An air kerma conventional true value determining method is provided, which addresses the problem of on-site and in-situ verification or calibration of radiation protection with existing standard reference radiation, which is large in spatial volume and unable or difficult to be moved. The method includes establishing a minitype reference radiation, selecting a proper radiation source and source intensity for providing incident rays for a shielding box, selecting a plurality of gamma ray dosimeters as samples for training a prediction model to obtain the prediction model of the air kerma conventional true value of a point of test, putting a probe of a dosimeter being verified at the point of test, recording scattering gamma spectrum measured by a gamma spectrometer, with the spectrum applied as input to the prediction model to obtain the air kerma conventional true value. The results are accurate and the reference radiation is small in size.